it helps if you give a little info as there are at least 2 things you could be experiencing depending which OS you may be using. 

Are you crashing after re-entering a room after a successful first battle? there's a solution to that.   winxp patch

are you randomly crashing every game or few games?   there's a solution to that.  win10 run as admin or or compatibility mode something something.


are you crashing just once in a while? that's always been a feature.

do this it helped me If you are running windows 10, follow these steps: 1) Locate where your game is installed. (e.g. if installed via steam, go to Steam>steamapps>common>NavyFIELD. If installed through this website, look in the default directory) 2) Right click on NavyFIELD (application). Go to properties. Under the compatibility tab, click "Change settings for all users." You should now have a pop-up dialog box. Check "Run this program in compatibility mode for:" and select Windows XP serivce pack 2. Check "Run this program as an administrator." Repeat these steps for NavyFIELD_Launcher, which should be located in the same directory. 3) Open your control panel > System and Security > System > Advanced System Settings (on the left side). In the advanced tab, locate the performance section and click Settings. You should now have a pop-up dialog box titled "Performance options." Go to the Data Execution Prevention tab. Tick "Turn on DEP for all programs and services except those I select." Add NavyFIELD and NavyFIELD_Launcher to this list. 4) Restart your computer. You should notice a significant decrease in crashes.

 with regards to winxp os in gamers' pcs-

BE SURE you have BOTH  vcredist_x86 files:   one dwnlded from windows and loaded into the program files folder and one within the navy field folder.  both must also be activated/opened  OR  repaired..  both are C++ files from 2008, but they are different!!!
the vcred 64 files are all defunct/useless.

as far as C++ stuff goes, 2005 and 2008 are all you need, possibly also the 2013(?) win7 C++ files.  win 8 has a built in themida worm within...i would bet 8.1, and 10 also do.

be sure you also update the enfuns updater.  

check all main.dll, navy field,  and navy field launcher files, as they may be locked!!  unlock them!  if you know how to adjust virt mem in the system file , i run virtual memory at 1650-2200.
i also skew pc energy and priority to graphic  processes, in all checkboxes in internet options, and system files within the control panel.

i did this for xp-set compatabilites to win NT 4.0(service pack 5) with advanced text services turned off.

load the vcred>>program files first, main client 2nd and load its vcred  86 file, launch program and get updates 3rd, then  EXIT LAUNCHER.  load winxp update, then enfuns updater.  finally load current update for  main client(7 8 8.1 10 steam version)-this gives you correct version and also a bunch of empty/crap/defunct  files     IF YOU DID EVERY THING ELSE CORRECTLY ABOVE!

ENDED MY CRASHES MOSTLY...MAYBE 1 IN 8 GAMES CRASHED CURRENTLY, AND MANY TIMES IT IS WINDOWS FAULT.


THIS IS REALLY NOT AS DIFFICULT AS IT LOOKS.

OH, YEAH...THEN RESTART. THEN LAUNCH.

fyi, on sunday 22nd, played almost completely thru level 96 and after finishing half of level 95  WITH NO CRASH at all.

crashed several times during late evening but all were MICROSOFT problems.

just do it...takes me more time to redownload  main client, than to do ALL of what i wrote above.